# vim: set fileencoding=utf-8 :

# ***********************IMPORTANT NMAP LICENSE TERMS************************
# *                                                                         *
# * The Nmap Security Scanner is (C) 1996-2019 Insecure.Com LLC ("The Nmap  *
# * Project"). Nmap is also a registered trademark of the Nmap Project.     *
# * This program is free software; you may redistribute and/or modify it    *
# * under the terms of the GNU General Public License as published by the   *
# * Free Software Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE   *
# * CLARIFICATIONS AND EXCEPTIONS DESCRIBED HEREIN.  This guarantees your   *
# * right to use, modify, and redistribute this software under certain      *
# * conditions.  If you wish to embed Nmap technology into proprietary      *
# * software, we sell alternative licenses (contact sales@nmap.com).        *
# * Dozens of software vendors already license Nmap technology such as      *
# * host discovery, port scanning, OS detection, version detection, and     *
# * the Nmap Scripting Engine.                                              *
# *                                                                         *
# * Note that the GPL places important restrictions on "derivative works",  *
# * yet it does not provide a detailed definition of that term.  To avoid   *
# * misunderstandings, we interpret that term as broadly as copyright law   *
# * allows.  For example, we consider an application to constitute a        *
# * derivative work for the purpose of this license if it does any of the   *
# * following with any software or content covered by this license          *
# * ("Covered Software"):                                                   *
# *                                                                         *
# * o Integrates source code from Covered Software.                         *
# *                                                                         *
# * o Reads or includes copyrighted data files, such as Nmap's nmap-os-db   *
# * or nmap-service-probes.                                                 *
# *                                                                         *
# * o Is designed specifically to execute Covered Software and parse the    *
# * results (as opposed to typical shell or execution-menu apps, which will *
# * execute anything you tell them to).                                     *
# *                                                                         *
# * o Includes Covered Software in a proprietary executable installer.  The *
# * installers produced by InstallShield are an example of this.  Including *
# * Nmap with other software in compressed or archival form does not        *
# * trigger this provision, provided appropriate open source decompression  *
# * or de-archiving software is widely available for no charge.  For the    *
# * purposes of this license, an installer is considered to include Covered *
# * Software even if it actually retrieves a copy of Covered Software from  *
# * another source during runtime (such as by downloading it from the       *
# * Internet).                                                              *
# *                                                                         *
# * o Links (statically or dynamically) to a library which does any of the  *
# * above.                                                                  *
# *                                                                         *
# * o Executes a helper program, module, or script to do any of the above.  *
# *                                                                         *
# * This list is not exclusive, but is meant to clarify our interpretation  *
# * of derived works with some common examples.  Other people may interpret *
# * the plain GPL differently, so we consider this a special exception to   *
# * the GPL that we apply to Covered Software.  Works which meet any of     *
# * these conditions must conform to all of the terms of this license,      *
# * particularly including the GPL Section 3 requirements of providing      *
# * source code and allowing free redistribution of the work as a whole.    *
# *                                                                         *
# * As another special exception to the GPL terms, the Nmap Project grants  *
# * permission to link the code of this program with any version of the     *
# * OpenSSL library which is distributed under a license identical to that  *
# * listed in the included docs/licenses/OpenSSL.txt file, and distribute   *
# * linked combinations including the two.                                  *
# *                                                                         *
# * The Nmap Project has permission to redistribute Npcap, a packet         *
# * capturing driver and library for the Microsoft Windows platform.        *
# * Npcap is a separate work with it's own license rather than this Nmap    *
# * license.  Since the Npcap license does not permit redistribution        *
# * without special permission, our Nmap Windows binary packages which      *
# * contain Npcap may not be redistributed without special permission.      *
# *                                                                         *
# * Any redistribution of Covered Software, including any derived works,    *
# * must obey and carry forward all of the terms of this license, including *
# * obeying all GPL rules and restrictions.  For example, source code of    *
# * the whole work must be provided and free redistribution must be         *
# * allowed.  All GPL references to "this License", are to be treated as    *
# * including the terms and conditions of this license text as well.        *
# *                                                                         *
# * Because this license imposes special exceptions to the GPL, Covered     *
# * Work may not be combined (even as part of a larger work) with plain GPL *
# * software.  The terms, conditions, and exceptions of this license must   *
# * be included as well.  This license is incompatible with some other open *
# * source licenses as well.  In some cases we can relicense portions of    *
# * Nmap or grant special permissions to use it in other open source        *
# * software.  Please contact fyodor@nmap.org with any such requests.       *
# * Similarly, we don't incorporate incompatible open source software into  *
# * Covered Software without special permission from the copyright holders. *
# *                                                                         *
# * If you have any questions about the licensing restrictions on using     *
# * Nmap in other works, we are happy to help.  As mentioned above, we also *
# * offer an alternative license to integrate Nmap into proprietary         *
# * applications and appliances.  These contracts have been sold to dozens  *
# * of software vendors, and generally include a perpetual license as well  *
# * as providing support and updates.  They also fund the continued         *
# * development of Nmap.  Please email sales@nmap.com for further           *
# * information.                                                            *
# *                                                                         *
# * If you have received a written license agreement or contract for        *
# * Covered Software stating terms other than these, you may choose to use  *
# * and redistribute Covered Software under those terms instead of these.   *
# *                                                                         *
# * Source is provided to this software because we believe users have a     *
# * right to know exactly what a program is going to do before they run it. *
# * This also allows you to audit the software for security holes.          *
# *                                                                         *
# * Source code also allows you to port Nmap to new platforms, fix bugs,    *
# * and add new features.  You are highly encouraged to send your changes   *
# * to the dev@nmap.org mailing list for possible incorporation into the    *
# * main distribution.  By sending these changes to Fyodor or one of the    *
# * Insecure.Org development mailing lists, or checking them into the Nmap  *
# * source code repository, it is understood (unless you specify            *
# * otherwise) that you are offering the Nmap Project the unlimited,        *
# * non-exclusive right to reuse, modify, and relicense the code.  Nmap     *
# * will always be available Open Source, but this is important because     *
# * the inability to relicense code has caused devastating problems for     *
# * other Free Software projects (such as KDE and NASM).  We also           *
# * occasionally relicense the code to third parties as discussed above.    *
# * If you wish to specify special license conditions of your               *
# * contributions, just say so when you send them.                          *
# *                                                                         *
# * This program is distributed in the hope that it will be useful, but     *
# * WITHOUT ANY WARRANTY; without even the implied warranty of              *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the Nmap      *
# * license file for more details (it's in a COPYING file included with     *
# * Nmap, and also available from https://svn.nmap.org/nmap/COPYING)        *
# *                                                                         *
# ***************************************************************************/


# Prevent loading PyXML
import xml
xml.__path__ = [x for x in xml.__path__ if "_xmlplus" not in x]

import xml.sax
import xml.sax.saxutils
from xml.sax.xmlreader import AttributesImpl as Attributes


def convert_to_utf8(text):
    """
    """
    return text.encode('utf8', 'replace')


class XMLNode:
    """
    """
    def __init__(self, name):
        """
        """
        self.__name = name
        self.__text = ""
        self.__attrs = dict()
        self.__children = []

    def set_text(self, text):
        """
        """
        self.__text = text

    def get_text(self):
        """
        """
        return self.__text

    def set_name(self, name):
        """
        """
        self.__name = name

    def get_name(self):
        """
        """
        return self.__name

    def add_attr(self, key, value):
        """
        """
        self.__attrs[key] = value

    def add_child(self, child):
        """
        """
        self.__children.append(child)

    def get_keys(self):
        """
        """
        return self.__attrs.keys()

    def get_attr(self, attr):
        """
        """
        return self.__attrs.get(attr)

    def get_attrs(self):
        """
        """
        return self.__attrs

    def get_children(self):
        """
        """
        return self.__children

    def query_children(self, name, attr, value, first=False, deep=False):
        """
        """
        result = []

        for child in self.__children:

            if child.get_name() == name:

                if attr in child.get_attrs():

                    c_value = child.get_attr(attr)

                    if c_value == value or c_value == str(value):
                        result.append(child)

            if deep:

                c_result = child.query_children(name, attr, value, first, deep)

                if c_result is not None:

                    if first:
                        return c_result

                    else:
                        result.extend(c_result)

        if first and len(result) > 0:
            return result[0]

        if first:
            return None

        return result

    def search_children(self, name, first=False, deep=False):
        """
        """
        result = []

        for child in self.__children:

            if child.get_name() == name:

                result.append(child)

                if first:
                    return result[0]

            if deep:

                c_result = child.search_children(name, first, deep)

                if c_result is not None and c_result != []:

                    if first:
                        return c_result

                    else:
                        result.extend(c_result)

        if first:
            return None

        return result


class XMLWriter(xml.sax.saxutils.XMLGenerator):
    """
    """
    def __init__(self, file, root=None, encoding="utf-8"):
        """
        """
        xml.sax.saxutils.XMLGenerator.__init__(self, file, encoding)

        self.__root = root

    def set_root(self, root):
        """
        """
        self.__root = root

    def write(self):
        """
        """
        self.startDocument()
        self.write_xml_node([self.__root])
        self.endDocument()

    def write_xml_node(self, root):
        """
        """
        for child in root:

            self.startElement(child.get_name(), Attributes(child.get_attrs()))

            if child.get_text() != "":
                self.characters(child.get_text())

            self.write_xml_node(child.get_children())

            self.endElement(child.get_name())


class XMLReader(xml.sax.ContentHandler):
    """
    """
    def __init__(self, file=None):
        """
        """
        xml.sax.ContentHandler.__init__(self)
        self.__text = ""
        self.__status = []

        self.__file = file
        self.__root = None

        self.__parser = xml.sax.make_parser()
        self.__parser.setContentHandler(self)

    def set_file(self, file, root):
        """
        """
        self.__file = file

    def get_file(self):
        """
        """
        return self.__file

    def get_root(self):
        """
        """
        return self.__root

    def parse(self):
        """
        """
        if self.__file is not None:
            self.__parser.parse(self.__file)

    def startDocument(self):
        """
        """
        pass

    def startElement(self, name, attrs):
        """
        """
        # create new node
        node = XMLNode(name)

        # putting attributes and values in node
        for attr in attrs.getNames():
            node.add_attr(attr, convert_to_utf8(attrs.get(attr).strip()))

        # who is my father?
        if len(self.__status) > 0:
            self.__status[-1].add_child(node)

        if self.__root is None:
            self.__root = node

        self.__status.append(node)

    def endElement(self, name):
        """
        """
        self.__status[-1].set_text(convert_to_utf8(self.__text.strip()))

        self.__text = ""
        self.__status.pop()

    def endDocument(self):
        """
        """
        pass

    def characters(self, text):
        """
        """
        self.__text += text


if __name__ == "__main__":

    import sys

    reader = XMLReader(sys.argv[1])
    reader.parse()

    root = reader.get_root()

    writer = XMLWriter(open("test.xml", 'w'), root)
    writer.write()
